Datsun Bluebird PL 610 U series

Class	Motor Car
Production	1971–1976
Assembly	Japan, Australia, New Zealand
Body style	4-door sedan 2-door coupé 5-door station wagon
Drive	rear wheel drive
Engine	1595 cc L16 Inline 4 1770 cc L18 Inline 4 1952 cc L20B Inline 6
Transmission	4-5 speed manual 3-speed automatic
Wheelbase	2,500 mm (98.4 in) 2,650 mm (104.3 in) (G610)
Length	4,215 mm (165.9 in) 4,420 mm (174.0 in) (G610)
Width	1,600 mm (63.0 in)
Height	1,415 mm (55.7 in)
Curb weight	1,035 kg (2,282 lb)

The Bluebird 610 series was launched in Japan in August 1971 badged as the U series.

History

In the summer of 1971, the PL 510 (with its previous Datsun 1600, Datsun 160, Datsun 180B and Datsun 610 exports in the US) was followed by a more American-style body U series in sedan, coupe and station wagon 1.6- and 1.8-liter four-cylinder engines in a variety of variants was offered. The engine was equipped with an in-line 4-cylinder 1.6L (L16) and 1.8L (L18). The grades are STD, DX, GL, SSS, SSS-L, and SSS-E for Japan only equipped with Bosch fuel injection.

• PERFORMANCE: 1.6L
  max power (DIN): 100 hp at 6,000 rpm
  max torque (DIN): 98 1b ft, 13.5 kg m at 4,000 rpm
  62.7 hp/l
  fuel consumption: 28.2 m/ imp gal, 23.5 m/US gal, 10 1 x 100 km.
  power-weight ratio: 21.2 lb/hp, 9.6 kg/hp
  max speeds: (l) 28 mph, 45 km/h; (Il) 45mph, 73 km/h; (Ill) 71 mph, 115 km/h; (IV) 99 mph, 160km/h
• PERFORMANCE: 1600 SSS
  max power (DIN): 105 hp at 6,200 rpm
  max torque (DIN): 100 1b ft, 13.8 kg m at 4,200 rpm; 65.8 hp/l
  max speed: 103 mph, 165 km/h
  power-weight ratio: 20.7 lb/hp, 9.4 kg/hp.
• PERFORMANCE: 1800 SSS
  max power (DIN): 115 hp at 6,000 rpm
  max torque (DIN): 112 1b ft. 15.5 kg m 4,000 rpm
  65 hp/l
  max speed: 109 mph, 175 km/h
  power weight ratio: 19.2 lb/hp, 8.7 kg/hp.
• PERFORMANCE: 1800 SSS-E
  max power (DIN): 125 hp at 6,200 rpm
  max torque (DIN): 116 1b ft, 16 kg m at rpm
  70.6 hp/l
  power-weight ratio: 17.9 lb/hp, 8.1 kg/h

The sedan and hardtop feature a so called "J line" under the side window, and its colour is in addition to the standard dark Gray, if the outer plate colour is white, the J line will be black, and if it is navy blue metallic, you can also choose orange. Due to the shift to a higher car class, the car body became larger, and the curved surface tone in line with the trend of the time gave it a strong design, and the car name was changed to "Bluebird U" with a surname of "U”. The slogan at the time of release is "Heartwarming Bluebird U series”. A fulfilling family Bluebird U" (since 1973). In the conventional 510 series, only the low-priced 1.4L and 1.6L models of the 2-door sedan/4-door sedan continued to be produced until December 1972 and were sold together in the home market with STD (Standard trim) GL (Grand Luxe), the sports SSS (Super Sports Sedan) with higher output engine with twin carburettors, or top of the range DX (Deluxe) 

For The home market equipped with an inline 6-cylinder 2.0L L20 type, the 2000GT series GT, GT-E, GT-X, GT-XE with a 150mm longer wheelbase and a 55mm longer front overhang.  is added. The front area was treated like the American Pontiac at the time, and the air outlet-like treatment of the scuttle was reminiscent of a shark's gills. large sales did not happen due to the oil crisis and exhaust gas regulations to help with this Nissan introduced their NAPS emissions system by 1975 along with facelift was made with changes to the grille, rear lights and interior, the coupe received a five-speed gearbox.

• PERFORMANCE: 2.0L GTX-E
  max power (DIN): 130 hp at 6,000 rpm
  max torque (DIN): 123 1b ft, 17 kg m at 4,400 rpm
  max engine rpm: 6.000
  65.1 hp/l
  max speed: 112 mph, 180 km/h
  power- weight ratio: 20.3 lb/hp, 9.2 kg/hp.

• August 10, 1971 - Released.
• August 1972 - SSS-L was added to the 1.8L sedan, and a 5-speed M/T car was added to the 1.6L EGI and SSS series as part of the improvement. In addition, discs are used for the front brakes of DX/STD grades, excluding vans. Passenger car road wheels changed to 14 inches, SSS car fender mirrors changed to square 5-speed manual transmission available in the Japanese market and also Australia.
• August 1973 - Changed the design of the rear combination lamp around the front grille with a minor change. Added 2000GT series.
• September 1975 - 2.0L EGI car, 1.6L, 1.8L, 2.0L carburettor specification car in October conforms to the 50 years exhaust gas regulation.
• February 1976 - 2.0L EGI car conforms to 1.6L, 1.8L EGI car in March 1951 emission regulations.